Why are you using CB's ECU and the MSD boost retard to control your timing?

If you're using the CB ECU to set your ignition curve, you need to lock the centrifugal advance mechanism in your distributor and remove your MSD boost retard module; the CB ECU should be programmed to adjust your timing under boost.

Stripped66 wrote:Why are you using CB's ECU and the MSD boost retard to control your timing?

If you're using the CB ECU to set your ignition curve, you need to lock the centrifugal advance mechanism in your distributor and remove your MSD boost retard module; the CB ECU should be programmed to adjust your timing under boost.

On the way home hammering through gears when all of the sudden I hit the rev limit. Didn't think much of it until I came to a stop and started rolling again - when I shifted to 3rd, it was like shifting to neutral so I hit 4th and made it home with no problems.

I'm guessing the gear has spun on the shaft but don't know a lot about these transaxles other than I have put this one through many years of abuse and for the past 3 years, it has been abused through a 2276 turbo at 15psi so I'm not complaining as I have no idea what's inside this trans. It is an AT code IRS with the single side cover and has treated me well and has never leaked a drop.

I'm now in the market for a solid replacement for this trans that will be able to take more abuse than this one has. I wouldn't be surprised if this one is stock but I won't be the one taking it apart - or at least I don't think I will be.

I'm in the prosess of putting together a 2599ccm T4 with CB quick tune and a T4/60 turbo. I have big Klaus Tuning pressure boxes on the TB's and they have 4" inlets. My turbo have 2,5" outlet. So the question is; Should I run 4" piping from the TB and as close to the turbo as possible? Or should I use 2,5" piping from the turbo and all the way to the pressure boxes, with a silicone reduction adapter at the end?

Hum_Bug wrote:I'm in the prosess of putting together a 2599ccm T4 with CB quick tune and a T4/60 turbo. I have big Klaus Tuning pressure boxes on the TB's and they have 4" inlets. My turbo have 2,5" outlet. So the question is; Should I run 4" piping from the TB and as close to the turbo as possible? Or should I use 2,5" piping from the turbo and all the way to the pressure boxes, with a silicone reduction adapter at the end?

Thanks for any input your guys might have

Sure is easier to plumb with small tube in the engine compartment. expand once you get to the boxes.